<template>
  <section class="loginContainer">
    <div class="loginInner">
      <div class="login_header">
        <h2 class="login_logo">外卖</h2>
        <div class="login_header_title">
          <a href="javascript:;" :class="{on:show}" @click="show=true">短信登录</a>
          <a href="javascript:;" :class="{on:!show}" @click="show=false">密码登录</a>
        </div>
      </div>
      <div class="login_content">
        <form @submit.prevent="login">
          <div :class="{on:show}">
            <section class="login_message">
              <input type="tel" maxlength="11" placeholder="手机号:13716962779" v-model="phone">
              <button
                class="get_verification"
                :disabled="!rightphone()"
                :class="{right_phone:rightphone()}"
                @click.prevent="getcode()"
              >{{time>0 ? `已发送(${time}s)`:'获取验证码'}}</button>
            </section>
            <section class="login_verification">
              <input type="text" maxlength="8" placeholder="验证码" v-model="code">
            </section>
            <section class="login_hint">
              温馨提示：未注册硅谷外卖帐号的手机号，登录时将自动注册，且代表已同意
              <a href="javascript:;">《用户服务协议》</a>
            </section>
          </div>
          <div :class="{on:!show}">
            <section>
              <section class="login_message">
                <input type="text" maxlength="11" placeholder="手机/邮箱/用户名" v-model="name">
              </section>
              <section class="login_verification">
                <input type="password" maxlength="8" placeholder="密码" v-model="pwd" v-if="!pass">
                <input type="text" maxlength="8" placeholder="密码" v-model="pwd" v-if="pass">
                <div class="switch_button" :class="pass?'on':'off'" @click="pass=!pass">
                  <div class="switch_circle" :class="{right:pass}"></div>
                  <span class="switch_text">{{pass?'abc':'...'}}</span>
                </div>
              </section>
              <section class="login_message">
                <input type="text" maxlength="11" placeholder="验证码" v-model="captcha">
                <img
                  class="get_verification"
                  src="http://localhost:4000/captcha"
                  alt="captcha"
                  @click="getcaptcha()"
                  ref="captcha"
                >
              </section>
            </section>
          </div>
          <button class="login_submit">登录</button>
        </form>
        <a href="javascript:;" class="about_us">关于我们</a>
      </div>
      <a href="javascript:" class="go_back" @click="$router.back()">
        <i class="iconfont icon-jiantou2"></i>
      </a>
    </div>
    <codeprompt :alertText="alertText" v-show="closetext" @closeTip="closeTip()"/>
  </section>
</template>
<script>
import codeprompt from "../codeprompt/codeprompt.vue"; //引入验证弹窗组件
import { reqPwdLogin, reqSendCode, reqSmsLogin } from "../../api"; //api引入
export default {
  data() {
    return {
      show: true, //密码登录切换
      time: 0, //验证码倒计时
      pass: false, //是否显示密码
      phone: "", //手机号
      name: "", //用户
      pwd: "", //密码
      code: "", //接受短信验证码
      captcha: "", //图形验证码
      alertText: "", //提示警告框
      closetext: false //是否关闭警告
    };
  },
  mounted() {
    //登录改变验证码防止退出再次登录出错
    this.getcaptcha();
    // console.log(this.rightphone());
    // console.log(this.$store.state.userInfo);
  },
  methods: {
    // 检查是否符号手机规则
    rightphone() {
      //无缓存效果
      // console.log(/^1\d{10}$/.test(this.phone));
      return /^1\d{10}$/.test(this.phone); //test检索
    },
    //验证码倒计时
    async getcode() {
      if (this.time == 0) {
        this.time = 30;
        this.mytime = setInterval(() => {
          this.time--;
          if (this.time <= 0) {
            clearInterval(this.mytime);
          }
        }, 1000);
        //短信验证
        let result = await reqSendCode(this.phone);
        if (result.code == 1) {
          this.alertcode(result.msg);
          //停止计时
          if (this.time) {
            this.time = 0;
            clearInterval(this.mytime);
            this.mytime = undefined;
          }
        }
      }
    },
    //警告框
    alertcode(text) {
      this.closetext = true;
      this.alertText = text;
    },
    //form提交
    async login() {
      let result;
      //前台验证
      if (this.show) {
        let { phone, code } = this; //短信登录
        if (this.rightphone() == false) {
          //手机号不正确
          this.alertcode("手机号不正确");
          return;
        } else if (!/^\d{6}$/.test(code)) {
          this.alertcode("验证码不正确");
          return;
        }
        //异步发送请求 上面程序验证完毕才可以进行await 操作
        result = await reqSmsLogin(phone, code);
      } else {
        let { name, pwd, captcha } = this; //密码登录
        if (!this.name) {
          //是否是新的用户名
          this.alertcode("用户名不正确");
          return;
        } else if (!this.pwd) {
          //是否是新的密码
          this.alertcode("密码不正确");
          return;
        } else if (!this.captcha) {
          //是否是新的验证码
          this.alertcode("验证码不正确");
          return;
        }
        result = await reqPwdLogin({ name, pwd, captcha });
      }
      //停止计时
      if (this.time) {
        this.time = 0;
        clearInterval(this.mytime);
        this.mytime = undefined;
      }

      // 根据结果数据处理
      if (result.code == 0) {
        //请求成功
        const user = result.data;
        //保存数据到state
        this.$store.dispatch("recordUser", user);
        //跳转路由
        this.$router.replace("/personal");
      } else {
        //失败
        //刷新验证码
        this.getcaptcha();
        const msg = result.msg;
        // 动态提示
        this.alertcode(msg);
      }
    },
    //关闭警告框
    closeTip() {
      this.closetext = false;
      this.alertText = "";
    },
    //验证码切换
    getcaptcha() {
      //加个动态参数 Date.now()
      //利用ref 操控dom元素 src
      this.$refs.captcha.src =
        "http://localhost:4000/captcha?time=" + Date.now();
    }
  },

  computed: {
    //  rightphone() {   //缓存效果
    //   return /^1\d{10}$/.test(this.phone);
    // }
  },
  components: {
    codeprompt //验证码提示弹窗
  }
};
</script>
<style lang="stylus">
@import '../../common/stylus/mixins.styl';

.loginContainer {
  width: 100%;
  height: 100%;
  background: #fff;
  touch-action: none;

  .loginInner {
    padding-top: 60px;
    width: 80%;
    margin: 0 auto;

    .login_header {
      .login_logo {
        font-size: 40px;
        font-weight: bold;
        color: #02a774;
        text-align: center;
      }

      .login_header_title {
        padding-top: 40px;
        text-align: center;

        >a {
          color: #333;
          font-size: 14px;
          padding-bottom: 4px;

          &:first-child {
            margin-right: 40px;
          }

          &.on {
            color: #02a774;
            font-weight: 700;
            border-bottom: 2px solid #02a774;
          }
        }
      }
    }

    .login_content {
      >form {
        >div {
          display: none;

          &.on {
            display: block;
          }

          input {
            width: 100%;
            height: 100%;
            padding-left: 10px;
            box-sizing: border-box;
            border: 1px solid #ddd;
            border-radius: 4px;
            outline: 0;
            font: 400 14px Arial;

            &:focus {
              border: 1px solid #02a774;
            }
          }

          .login_message {
            position: relative;
            margin-top: 16px;
            height: 48px;
            font-size: 14px;
            background: #fff;

            .get_verification {
              position: absolute;
              top: 50%;
              right: 10px;
              transform: translateY(-50%);
              border: 0;
              color: #ccc;
              font-size: 14px;
              background: transparent;

              &.right_phone {
                color: black;
              }
            }
          }

          .login_verification {
            position: relative;
            margin-top: 16px;
            height: 48px;
            font-size: 14px;
            background: #fff;

            .switch_button {
              font-size: 12px;
              border: 1px solid #ddd;
              border-radius: 8px;
              transition: background-color 0.3s, border-color 0.3s;
              padding: 0 6px;
              width: 30px;
              height: 16px;
              line-height: 16px;
              color: #fff;
              position: absolute;
              top: 50%;
              right: 10px;
              transform: translateY(-50%);

              &.off {
                background: #fff;

                .switch_text {
                  float: right;
                  color: #ddd;
                }
              }

              &.on {
                background: #02a774;
              }

              >.switch_circle {
                // transform translateX(27px)
                position: absolute;
                top: -1px;
                left: -1px;
                width: 16px;
                height: 16px;
                border: 1px solid #ddd;
                border-radius: 50%;
                background: #fff;
                box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.1);
                transition: transform 0.3s;

                &.right {
                  transform: translateX(30px);
                }
              }
            }
          }

          .login_hint {
            margin-top: 12px;
            color: #999;
            font-size: 14px;
            line-height: 20px;

            >a {
              color: #02a774;
            }
          }
        }

        .login_submit {
          display: block;
          width: 100%;
          height: 42px;
          margin-top: 30px;
          border-radius: 4px;
          background: #4cd96f;
          color: #fff;
          text-align: center;
          font-size: 16px;
          line-height: 42px;
          border: 0;
        }
      }

      .about_us {
        display: block;
        font-size: 12px;
        margin-top: 20px;
        text-align: center;
        color: #999;
      }
    }

    .go_back {
      position: absolute;
      top: 5px;
      left: 5px;
      width: 30px;
      height: 30px;

      >.iconfont {
        font-size: 20px;
        color: #999;
      }
    }
  }
}
</style>
